Título
Large amplitude noise reduction in ultrashort pulse trains using a power-symmetric nonlinear optical loop mirror
Autor
BALDEMAR IBARRA ESCAMILLA
EVGENY KUZIN
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
We analyse numerically the capabilities of a power-symmetric nonlinear optical loop mirror (NOLM) in the ultrashort pulse regime for high-quality amplitude regeneration of an optical signal. The device, which operates through nonlinear polarisation rotation, includes twisted, anomalous-dispersion fibre and a quarter-wave retarder. For particular adjustments of the retarder orientation, and a circularly polarised input beam, the output energy characteristic flattens near the switching energy, a property that can be used to eliminate large amplitude fluctuations in an optical signal. The group velocity mismatch between polarisation components introduced by twist is mitigated by the interplay between anomalous dispersion and the nonlinear Kerr effect, although strong twist should be avoided as it still introduces substantial pulse distortion. Contrary to other designs, where a plateau characteristic requires a large power imbalance between the counter-propagating beams, both pulses in the present scheme can be simultaneously close to fundamental solitons, which allows a substantial widening of the plateau for particular pulse parameters. Good quality, nearly transform-limited pulses are obtained in this case at the NOLM output. The device is applicable for the regeneration of ultrafast data streams in which the signal-to-noise ratio is severely deteriorated.
Editor
Optics
&
Laser Technology
Fecha de publicación
2009
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Relación
&
Laser Technology. Vol.41(4) 384–391
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Pottiez, O., et al., (2009). Large amplitude noise reduction in ultrashort pulse trains using a power-symmetric nonlinear optical loop mirror, Optics
Repositorio Orígen
Repositorio Institucional del INAOE
Descargas
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